42039 B Model is easy to customize. It contains lots of empty space, the steering is easy to access and the transmission can be implemented from the front if you put a powerfunction motor in place of the fake motor, or from the inside, on the rear.
I made the choice to add an XL motor to the rear, it’s not totally inside, but this MOC has to remain very easy to build without requiring lots of complementary pieces. The steering is made with a servomotor plugged on the original steering axe.
I changed the wheels. The original ones are too small for a SUV. Considering that the model does not look like a real 4×4 made for ground pathes, balloon tires are not the more evident choice, even if they’re quite common on recent models (42029, 9398, 42005…), so it seems that the ones from the 42000 formula one are the good ones.
Last point, the original rear suspension is made with blue long pins with friction ridges, probably because those were the only available ones from the original model. I replaced them with tan pins without friction which makes the suspension much more soft, effective and realistic.
Globally, the SUV is not very fast, but has enough torque for small obstacles, the steering works very well, and it’s very easy to play with, though, don’t expect to make it climb like the 9398 crawler.
Download : 42039B - RC - PDF (5200 downloads)